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- 23 F, Building B, Zhong Tou International Building, No.10 Jin Ye I Road, High-Tech Zone, Xi'an, Shaanxi, China 710077
- info@vigorpetroleum.com
- +86-029-81161513
Drill Collar
●Standard: API Spec.7-1and NS-1
●Material: AISI4145H, 4145H Mod, non-magnetic material
●Type: Slick Drill Collar, Spiral Drill Collar, Short Drill Collar
●Special Feature: Threads Cold Rolled; Pin Relief Groove and Box Bore Back; Slip and Elevator Recess; Hard banding
●Providing Customized Services
●Technical Specification Sheet Available
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of drill collar in China, featured by competitive price and fast delivery. Welcome to buy high quality drill collar in stock here from our factory.
Drill collar as one component of a drill string is extremely industrial tubular and used to drill into the ground to provide weight on the bit for drilling. It is used in conjunction with a drill pipe. There are slick and spiral-grooved types mainly.
Vigor's collars are engineered to the highest standards to deliver optimal performance and durability for demanding drilling applications. Our manufacturing process is certified to API spec 7-1 and NS-1, and our products undergo rigorous quality control to ensure dependable service under punishing downhole conditions.
Drill Collar Material
When it comes to manufacturing, the choice of material is of paramount importance, which ensures product durability and performance. The three primary material options for Vigor's drill collars are AISI 4145H, 4145H Mod, and non-magnetic materials.
| AISI 4145H | AISI 4145H is a high-strength alloy steel known for its excellent mechanical properties. It is a popular choice due to its superior strength, toughness, and resistance to wear and corrosion. This material is capable of withstanding the high stresses and torsional loads encountered during drilling operations, making it a reliable option for demanding drilling environments. |
| 4145H Mod | 4145H Mod is an even more enhanced version of AISI 4145H, improving the material's mechanical properties. |
| Non-Magnetic Material | In certain drilling applications, especially those involving sensitive equipment such as directional drilling tools and downhole instruments, the use of non-magnetic materials is crucial. Non-magnetic drill collars are designed to minimize interference with magnetic surveying equipment and maintain the accuracy of directional drilling operations. These collars are typically made from specialty alloys that exhibit very low magnetic permeability, ensuring minimal magnetic interference while maintaining the structural integrity needed for the drilling process. our non-magnetic collars provide the rugged strength to withstand the stresses of horizontal, directional, and extended-reach drilling. With an exceptional torque capacity and ideal straightness characteristics, the Vigor collar transmits weight and rotary power effectively for greater drilling efficiency. |
What type of drill collar can Vigor provide?
Vigor offers a complete range of collar configurations to suit specific drilling requirements, You can clearly obtain the technical specifications for each type of collar in the following table.:
|
Slick Collars With a smooth, chrome-plated outer diameter, it reduces torque and prevents damage while passing through the wellbore. The hard chrome plating also increases corrosion resistance. |
|
|
Spiral Drill Collars The spiral/fluted profile allows faster circulation and improved hole cleaning. The flutes provide wider fluid channels to quickly clear cuttings and prevent clogging. |
 |
|
Non-magnetic drill collars Non-magnetic drill collars are designed to minimize interference with magnetic surveying equipment and maintain the accuracy of directional drilling operations. These collars are typically made from specialty alloys that exhibit very low magnetic permeability, ensuring minimal magnetic interference while maintaining the structural integrity needed for the drilling process. our non-magnetic collars provide the rugged strength to withstand the stresses of horizontal, directional, and extended-reach drilling. |
|
Technical Parameters
Slick Drill Collar
|
O.D. |
I.D. |
Length mm |
Style of Connection |
Bevel Diameter mm |
Bending Strength Ratio |
||
|
mm |
In. |
mm |
In. | ||||
|
79.4 |
3-1/8 |
31.8 |
1-1/4 |
9150 |
NC23-31 |
76.2 |
2.57:1 |
|
88.9 |
3-1/2 |
38.1 |
1-1/2 |
9150 |
NC26-35(2-3/8IF) |
82.9 |
2.42:1 |
|
104.8 |
4-1/8 |
50.8 |
2 |
9150 |
NC31-41(2-7/8IF) |
100.4 |
2.43:1 |
|
120.7 |
4-3/4 |
50.8 |
2 |
9150 |
NC35-47 |
114.7 |
2.58:1 |
|
127.0 |
5 |
57.2 |
2-1/4 |
9150 |
NC3850(3-1/2IF) |
121.0 |
2.38:1 |
|
152.4 |
6 |
57.2 |
2-1/4 |
9150or9450 |
NC44-60 |
144.5 |
2.49:1 |
|
158.8 |
6-1/4 |
57.2 |
2-1/4 |
9150or9450 |
NC44-62 |
149.2 |
2.91:1 |
|
158.8 |
6-1/4 |
71.4 |
2-13/16 |
9150or9450 |
NC46-62(4IF) |
150.0 |
2.63:1 |
|
165.1 |
6-1/2 |
57.2 |
2-1/4 |
9150or9450 |
NC46-65(4IF) |
154.8 |
2.76:1 |
|
165.1 |
6-1/2 |
71.4 |
2-13/16 |
9150or9450 |
NC46-65(4IF) |
154.8 |
3.05:1 |
|
171.4 |
6-3/4 |
57.2 |
2-1/4 |
9150or9450 |
NC46-67(4IF) |
159.5 |
3.18:1 |
|
171.4 |
6-3/4 |
71.4 |
2-13/16 |
9150or9450 |
NC50-67(4-1/2IF) |
159.5 |
2.37:1 |
|
177.8 |
7 |
57.2 |
2-1/4 |
9150or9450 |
NC50-70(4-1/2IF) |
164.7 |
2.54:1 |
|
177.8 |
7 |
71.4 |
2-13/16 |
9150or9450 |
NC50-70(4-1/2IF) |
164.7 |
2.73:1 |
|
184.2 |
7-1/4 |
71.4 |
2-13/16 |
9150or9450 |
NC50-72(4-1/2IF) |
169.5 |
3.12:1 |
|
196.8 |
7-3/4 |
71.4 |
2-13/16 |
9150or9450 |
NC50-77 |
185.3 |
2.70:1 |
|
203.2 |
8 |
71.4 |
2-13/16 |
9150or9450 |
NC50-80 |
190.1 |
3.02:1 |
|
209.6 |
8-1/4 |
71.4 |
2-13/16 |
9150or9450 |
6-5/8REG |
195.7 |
2.93:1 |
|
228.6 |
9 |
71.4 |
2-13/16 |
9150or9450 |
NC61-90 |
212.7 |
3.17:1 |
|
241.3 |
9-1/2 |
76.2 |
3 |
9150or9450 |
7-5/8REG |
223.8 |
2.81:1 |
|
247.6 |
9-3/4 |
76.2 |
3 |
9150or9450 |
NC70-97 |
232.6 |
2.57:1 |
|
254.0 |
10 |
76.2 |
3 |
9150or9450 |
NC70-100 |
237.3 |
2.81:1 |
|
279.4 |
11 |
76.2 |
3 |
9150or9450 |
8-5/8REG |
266.7 |
2.84:1 |
※Drill collar can be customized as per the customer's design.
Spiral Drill Collar
|
O.D. (In.) |
4-3/4 |
6-1/4 |
6-3/4 |
7-1/4 |
7-1/2 |
8 |
9-1/2 |
10 |
11 |
|
Depth of Cut (In.) |
7/32 ±1/32 |
9/32 ±1/16 |
5/16 ±1/16 |
11/32 ±1/16 |
11/32 ±1/16 |
3/8 ±1/16 |
13/32 ±3/32 |
7/16 ±3/32 |
15/32 ±3/32 |
|
Spiral Pitch (In.) |
38 ±1 |
42 ±1 |
46 ±1 |
64 ±1 |
64 ±1 |
68 ±1 |
72 ±1 |
76 ±1 |
80 ±1 |
※ Drill collar can be customized as per the customer's design
Mechanical Property
|
O.D Range |
Yield Strength |
Tensile Strength |
Elongation |
Hardness |
Impact Test |
|
|
mm |
In. |
Mpa |
Mpa |
% |
HB |
J |
|
79.4-171.4 |
3-1/8-6-3/4 |
≥758 |
≥965 |
≥13 |
285～341 |
≥54 |
|
177.8-279.4 |
7--11 |
≥689 |
≥930 |
≥13 |
285～341 |
≥54 |
※Mechanical Property of Slick and Spiral Drill Collar made of AISI 4145 H.
Engineered for Reliable Performance
Every Vigor product is precision-manufactured using state-of-the-art methods to ensure reliable performance, Bores are trepanned from one direction with no mismatch. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe.
Vigor Special Feature
Cold rolled threads prevent galling and enable high torque transmission even after repeated use.
Pin relief groove and box boreback improve fluid flow and prevent pressure buildup.
Slip and elevator recesses allow secure pipe handling with rig equipment.
Hard banding on box and pin ends increases wear resistance and service life, saving on replacement costs.
Application
With their rugged design, Vigor products are ideal for demanding oil and gas drilling operations.
The non-magnetic AISI 4145H alloy steel construction makes our collars well-suited for directional and horizontal drilling. Whether you need API 7-1 compliant collar for offshore rigs or optimized collars for land-based wells, Vigor has the right product. With excellent torque capacity, Vigor products improve weight transfer and borehole quality in a wide range of drilling environments, from top-hole drilling to deep hydrocarbon exploration.
FAQ
Q: What are the features and benefits of Vigor's drill collar?
Q: Does Vigor's drill collar have any special features?
Deilvered Photos
With our uncompromising quality and engineering, Vigor drill collar is the ideal solution for drillers seeking safety, durability, and drilling efficiency. Please contact our team to discuss how our collars can optimize your drilling programs.
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